orca

She said as Cardigan Bay was shallow, being about 60m at its deepest, it meant the dolphins had no predators, such as orcas or sharks.

"The Tibetan lama said the main thing the orcas can teach us is how to breathe."

Despite claims of being a climate leader and steward of endangered southern resident orcas, the Canadian government quickly purchased the incomplete heavy oil pipeline for $3.3 billion, insisting it was in the national interest.

A new study has confirmed a long-held assumption: that orcas take just one breath between dives.

She wore a black and white swimsuit — an attempt to fool sharks into thinking she might be an orca — and a swim cap with a light on it, so her support team could see her.